Add Yahoo as a preferred source to see more of our stories on Google. Man performing dumbbell overhead triceps extension in mirror. Take a look around at your fellow gym-goers next time you visit the ...

As the old adage goes, good things always come in threes, so it’s no surprise the most eye-popping muscle in your arms is, in fact, three parts that join together. 'There are three heads to the tricep ...

The triceps extension targets all three heads for sleeve-filling size and lockout strength without taxing your shoulders or chest. It’s not just bro‑lore either. In a 12‑week study on trained adults, ...

When most people think of bigger arms, their mind immediately goes to biceps. But here’s the truth seasoned lifters understand: your triceps make up nearly two-thirds of your upper-arm size. If you ...

The triceps brachii is a three-headed muscle that plays a critical role in elbow extension, pressing strength, and upper arm development. Its long, lateral, and medial heads each contribute ...

If you tend to walk right past the cable machine at the gym, listen up. While you can always work your triceps with a set of dumbbells, the cable machine is an excellent way to isolate your arms and ...

Good things always come in threes: fairy godmothers, parts of a combo meal, boy bands made of brothers (Hi Jonas and Hansen!). So it’s no surprise the most eye-popping muscle in your arms is, in fact, ...

Pull-ups, rows, presses and dips also train the arms. Combining compound and isolation exercises can create a more effective ...

The Bicep Curl exercise is a common addition to workouts, most notably due to its firming and strengthening abilities for the front of the upper arms. The triceps, a three-headed muscle located on the ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Arm day can be one of ...

Keeping the triceps area strong is important for carrying about everyday tasks. Anastasiia Havrysh / iStock Marjie Gilliam. contributed Keeping the triceps area strong is important for carrying about ...